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Breaking And Entering

Gain access to Arkham Mansion after it is locked down by the Joker

Breaking And Entering0
1 guideOffline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Main Storyline - These achievements are gained automatically by progressing through the main game modes.
Mystic Typh00nMystic Typh00n419,755
16 Feb 2012
4 0 0
This is after you run into the 4 snipers and try to access the mansion. When you've taken out all 4, you'll go through the front door, but soon find out you can't. Remember where the two snipers standing next to each other? Grapple up to that ledge and pull down the air vent using the batclaw. Once you've entered through there and enter the door in that room the achievement will pop.